Machine for the production of drain-tiles.



NO. 832,132. r EATENTED, OCT. 2, 1906.

N. KETELSBN. I

MACHINE FOR THE PRODUCTION OF DRAIN TILES.

APPLIOATION FILED 'APR.,6. 1906.

Mar D THE uoluus PETERS ca., wnsmuarcu, n. c

UNITED STATES PATENT oEEIoE.

NIKOLAUS KETELSEN, OF KLAPPHOLZ PER HAVETOFT, GERMANY.

MACHINE FOR THE PRODUCTION OF DRAIN-TILES.

Specification of Letters Patent.

Patented Oct. 2, 1906.

Application filed April 6.1906. Serial No. 310,391.

Havetoft, Province of Schleswig, in the Empire of Germany, have invented a new and useful Improved Machine for the Production of Drain-Tiles, of which the following is a specification.

The present invention relates to an improved machine for the production of draintiles.

Special objects of the invention are to simplify and cheapen the construction and to render more efficient, serviceable, and durable in operation machines of the kind referred to.

WVith these ends in view the invention consists in the novel combination, arrangement, and adaptation of parts, all as more fully hereinafter explained, shown in the accompanying drawings, and then specifically set out in the appended claims.

Referring to the drawings, Figure 1 illustrates my improved machine in front elevation, partly in section. Fig. 2 showsa plan elevation of the machine, and Fig. 3 represents a transverse section of same.

Before proceeding to describe the construction of my improved machine in detail I wish to point out that farm-drainage has been grossly neglected so far, owin to the excessively high cost of the burnt-c ay tiles hitherto in use. Especially, small farmers would not hear of draining the soil. My specific aim is to enable farmers to produce their own drain-tiles. Practical experiments have shown that even small farmers are quite prepared to set up a machine, provided the latter is simple in construction and provided such a machine does not lay special claims to the attention and intelligence of the operator. Based on these observations, my improved machine is constructed so that any ordinary farm-hand can operate same. Thus the spare time of farmers can be usefully employed for the cultivation of the ground. In fact, such a machine will even turn out to its owner a monetary profit directly by supplying drain-tiles to neighboring farmers not in possession of such a machine.

thereto or integral therewith. ance with the internal diameter of the draintiles to be produced by the machine this fixed wall 0 is provided with a plurality of openings arranged side by side, with a sufficient space between them. It is to be assumed that drain-tiles of circular cross-section are to be manufactured, and to that end the drawings show the openings in the wall 0 of circular shape; but it is obvious and will be readily understood by the following description that I do not wish to confine myself to a circular shape, as oblong, square, and other polygonal cross-sections may likewise be produced with equal facility.

Behind the fixed wall 0 is a second wall (I of similar dimensions. This wall or plated is, however, rectilineally movable on the table a by means of a two-armed lever f, having its fulcrum or pivot-point at e and being connected to the plate d, preferably at the center or thereabout, by the pitman-rod g. The table a has attached thereto rails h for rectilineally guiding the plate at when the twoarmed lever f is being swung in a horizontal plane around its fulcrum e.

The plate 61 carries the center pieces or cores i, around which the drain-tiles are to be molded. Said cores't correspond in number and arrangement, as well as in diameter, to the circular openings in the fixed wall 0, through which they project and within which they may be moved to and fro.

At the front edge of the table a is attached a vertically-standing plate k. A similar plate a is fixed to the table a at a distance from the plate 7c corresponding to the lengthy separate from the wall a in any suitable man ner. Both plates 7c and a show circular holes in accordance with the holes in the fixed wall 0 for the penetration of the cores i. Around said holes and concentric therewith at a distance which agrees with the thickness of thedrain-tiles to be manufactured the two plates 7c and u show at their top edges projections which cover semicircles or even a little more than semicircles, for a purpose to be described later on.

To constitute the lower mold of the machine, I fix between the two plates and a members Z, which are semicircularly dished In accord in cross-section and whose concave surfaces lie concentric'withthe cores 'L and a distance therefrom corresponding to the thickness of the draintiles to be produced.

To raise the drain-tiles above the mold when finished, I place into the hollow mold members Z sheet-metal carrier-plates s of corresponding cross-sectional shape, said carrier-plates being adapted to be lifted by the following means: The mold members Z are each provided with transverse apertures, suitably two in number, one at or in the proximity of each end of the members. Into these transverse apertures fit lifting-forks 1), which bear against the under face of the carrier-plates s. The bearing-surface of the lifting-forks '0 preferably corresponds with the external configuration of the carrierplates to insure a safe bedding of the latter when being raised. The lifting-forks v are situated at the upper extremity of verticallymovable rods m, which penetrate the table a and which may be projected upwardly through the apertures of the mold members Z; All the rods m are connected together by a frame a beneath the table a, and said frame it is connected, by means of a pitman-rod 0, to the inner and shorter end of a two-armed lever g. Said lever g has its fulcrum around the pivot 19, carried by the under frame I). It's external end terminates in a handle or foot-plate to facilitate its movement in a vertical plane.

The gaps between the mold members Z are closed by rails r at an elevation in agreement with the major axis of'the cores i.

The machine is completed by a moldingledge 15, whose lower edge shows semicircular excisions corresponding in arrangement and size with the semicircular projections ofthe terminal plates 76 and a.

The operation of my improved machine is as follows: The carrier-plates 8 having previously been placed in the concave mold members 1,1 move the cores i, by means of the hand-leverf, toward the front edge of the table a till they engage and line the circular openings of the front terminal plate 7c. The carrier-plates s in conjunction with the cores ithen constitute the lower molds into which the material the drain-tiles are to be manufactured from is filled. It is non-essential whether clay or concrete material is employed', as like favorable results will be obtained in each case. After completely filling the annular spaces between the cores 7) and the plates .9 the tile material is brought on top of the cores i, so as to cover up same higher than the top edges of the two terminalplat'es 7c and a. This being effected, I take the molding-ledge t and move same by hand to and fro on the tile material. The rectilineal movement of the ledge 25 is attained by the guide-rails h on the table a. At the same time the rails 7L cause the ledge t to have its semicircular excisions at the lower working edge concentric with the cores'i during the to-and-fro movement. When all the superfluous tile material has been removed by the n'iolding-ledge t, which will be the case when the ledge abuts on the gap-filling rails r, the drain-tiles are completed.

It mustbe observed here, before proceeding with the description of the following actions, that the stroke of the molding-ledge 25 extends beyond the length of thedraih-tiles owing to the fact that the ledge t may pass over the top edges of the two terminal plates k and it, these having been configurated, as hereinhefore stated, to correspond withthe excisions of' the working edge of. the ledge. This configuration of the terminal plates and a guarantees sharp-edged drain-tiles at both extremities, as the tile materialunder the influence of the ledge 16 when being passed over the plates k a is forced against said plates. After taking off the molding-ledge t'and after removing the cores 7; from the finished draintiles by turning the hand-leverf to its previous position I' force the lever g downwardly, thereby raising, through the agency of the pitman-rod 0, the frame n and with same the vertical rods m. The forks 'v partake in the movement of the rods m and lift the carrierplates 8, with the finished drain-tilesrestihg thereon, above the rails r. They can then be taken off and removed to the drying roomor shed with facility.

Means of well-known construction may be provided to protect the guide-rails h and other working parts from the destructive influence of the tile material. The superfluous tile material that has been pared off by the ledge t is caught in a receiver placed around the mold and may be used again for the next or any other following charge of the machine.

While I have shown in the accompanying drawings the preferred form of my invention, it will be understood that I do not limit myself to the precise form shown, for many of the details may be changed in form or position without effecting the operativeness or utility of my invention, and I therefore reserve the right to make all such modifications as are included within the scope of the following claims or of mechanical equivalents to the structure set forth.

What I do claim as my invention, and desire to secure by Letters Patent, i's

1. An improved machine for the production of hollow drain-tiles comprising in combination a lower mold member semicircularly dished in cross-section, a circular stationary apertured plate located at each end of said mold, a cylindrical core located concentrically with respect to said mold member, means for reciprocating the core axially with respect to the lower mold member whereby said core is adapted to pass through the apertures of said end plates, a hand-actuated.

- ledge for forming the upper half of the draintiles around the top portion of the aforesaid core, means for rectilineally guiding the ledge during its movement, and means for raising the finished drain-tiles above the mold, substantially as set forth.

2. An improved machine for the production of drain-tiles comprising in combination, a table, a plurality of mold members attached horizontally to said table, said mold members being dished semicircularly in cross-section, rails connecting said mold members at the elevation of the major axis, circular stationary plates attached to the table at each end of the mold members for forming the end faces of the drain-tiles, hollow cylindrical cores adapted to be rectilineally reciprocated on the table so as to occupy a position concentric With the lower mold the reception of the tile material, said end plates being provided With apertures for the penetration of the cores, a hand-actuated ledge for forming the upper half of the draintiles around the top portions of the cores, said ledge having semicircular excisions cor responding With the lower mold members, L-shaped rails for rectilineally guiding the ledge during its movement, and means for raising the finished drain-tiles above the mold, substantially as described.

In Witness whereof I have hereunto signed my name, this 21st day of March, 1906, in the presence of two subscribing Witnesses.

NIKOLAUS KETELSEN.

Witnesses:

ERNEST H. L. MUMMENHO F, IDA CHRIST. HAFERMANN. 

